Danish poet who became the symbol of his generation's desire for freedom and who was killed as a result of his participation in the organized Danish resistance to the German occupation during World War II.

Nielsen was only 22 when he was killed, but the role he played in Denmark was that not of a martyr or agitator but of a poet. He had been able to express, in well-formed verse, matters that were engaging the minds of his generation and his fellow countrymen. In contrast to most of the poetry of the occupation, Nielsen's verse is still read in Denmark. A large edition of the collected poems was published 10 years after his death.